HP OpenVMS Systems

Avoiding record length limit in EDT?

I am running COM file as follows:
*************************************
$COPY exim. exim.prt
$ ed/EDT exim.PRT
SUBS /!//1:10000000
exit
$EXIT
*************************************
The length of record in exim.prt file greather then 255 characters.
So the system error with the error message:
"Record too big, truncated to 255 characters"
My question:
1. How to solve the error
2. How to increase length of record?
I do appreciate for your assistance.
Thanks
Sinaga

The Answer is :

EDT is old and limited and relatively slow, and is not particularly
recommended for new work and continued use. There is no way to
increase the supported record length within EDT, short of acquiring
the EDT source, modifying it, and rebuilding it. (An activity that
is beyond the scope of Ask The Wizard.) TPU -- with or without the
EDT keypad -- is another available choice.
You could look at a simple DCL command procedure in a loop, or at
an editor (TPU, SUMSLP, or otherwise) that operates with longer
records.
Or, of course, you could reduce the record length.
You will also want to ensure that the record structure is correct
for the particular file -- files that have been transfered from
another system (via disk or network) can easily have incorrect file
attributes set. Various files can use or require stream-LF file
structure.
Without details of this particular file -- the output from the DCL
command DIRECTORY/FULL, as well as a dump of the first couple of
blocks of the file, as well as what text format you expect to be
found in this PRT file -- it is difficult to determine if the file
does (or does not) have a record structure mismatch. Please
contact the Compaq Customer Support Center for assistance.